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55748807408 = 2471549321341
BaseRepresentation
bin110011111010111000…
…110100101011110000
312022220020012211211202
4303322320310223300
51403133143314113
641335522230332
74012336021130
oct637270645360
9168806184752
1055748807408
1121708826158
12a97a1b53a8
135345a99308
1429ac032ac0
1516b4410258
hexcfae34af0

55748807408 has 40 divisors (see below), whose sum is σ = 123523864800. Its totient is φ = 23876847360.

The previous prime is 55748807341. The next prime is 55748807417. The reversal of 55748807408 is 80470884755.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12818 + ... + 334158.

It is an arithmetic number, because the mean of its divisors is an integer number (3088096620).

Almost surely, 255748807408 is an apocalyptic number.

It is an amenable number.

55748807408 is an abundant number, since it is smaller than the sum of its proper divisors (67775057392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55748807408 is a wasteful number, since it uses less digits than its factorization.

55748807408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322905 (or 322899 counting only the distinct ones).

The product of its (nonzero) digits is 10035200, while the sum is 56.

The spelling of 55748807408 in words is "fifty-five billion, seven hundred forty-eight million, eight hundred seven thousand, four hundred eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 1549 3098 6196 10843 12392 21686 24784 43372 86744 173488 321341 642682 1285364 2249387 2570728 4498774 5141456 8997548 17995096 35990192 497757209 995514418 1991028836 3484300463 3982057672 6968600926 7964115344 13937201852 27874403704 55748807408